Liquid display device



Nov. 16, 1937.

C. W. WEBER LIQUID DISPLAY DEVICE Filed June 11, 1936 CHARLESW. WEBER INVENTOR BY HIS ATTORNEY FlG.2

(640/11 am" Z/Qd/fl fazoma-o 1420/0 Patented Nov. 16, 1937" 'UNITE"DSTATES PATENT OFFICE" 2,099 55' V LIQUID DISPLAY DEVICE.

Charles W..Weber,' Margate City, 3., fassignor to The TexasCoinpany, New .Y'ork N. Y., a corporation of Delaware p ApplicationJune 11, 1926', serial No. 84,716

6 cinir s- (olfiiogizti This invention rentes to a liquid display device. i 1 i It is an object of the present invention to provide a device for visibly demonstrating liquids of any desired type such, for example, as'lubrieating oils in order to demonstrate .certain' of their characteristics. In order to make the di's play interesting and to attract attention to it, means are provided for giving the oil to be demonstrated an appearance of being agitated while the oil is actually maintained in a quiescent state.

The oil could itself be agitated by bubbling air through it .but the continuous. agitation of the oillwith air would be apt to' produce injurious effects upon the oil; making it appear to be cloudy and possibly even throwing'it .ofi "color: Tofavoid injuring theoillon display the present invention proposes to produce the desired agitation in a body of colorless liquid around which the body of quiescent oil on display is arranged in a relatively thick sheet or film through which air bubbles rising in the colorless liquid can readily be seen. In this manner the efiect of agitation is produced without actually disturbing the oil on display.

Other objects, features and advantages of the invention will appear as the description thereof progresses, reference being had to the accompanying drawing, in which:

Fig. 1 is a vertical sectional View of a liquid display device embodying the present invention, and

Fig. 2 is a sectional plan view of the same device taken on the line 2-2 of Fig. 1.

Referring to the drawing, it will be seen that a pair of similarly shaped transparent containers such as glass tubes Ill and I2 are supported between an upper supporting member l4 and a lower supporting member l6 in such a manner that a space or chamber ll of uniform thickness is provided between the two tubes. The upper supporting member I4 has a downwardly depending annular flange l8 which is adapted to receive and support the upper end of tube l and a centrally disposed opening l9 surrounded by an upwardly extending annular flange 20 which is adapted to receive and support the upper end of the inner tube [2.

The lower supporting member I6 is provided with a centrally disposed threaded opening 22 and two upwardly extending spaced annular flanges 24 and 26. Flange 24 is adapted to receive and support the lower end of tube It), while the flange 26 is adapted to receive and support the lower end of tube l2. The tubes are preferably sealed in position within their respective flanges by any suitable sealing material suchvas litharge, thereby rendering the chamber I'l liquid tight. 7

An expansion chamber 28 is secured to flange 26 in such a manner as to enclose the upper extended end of tube l2. From the expansion chamber a pipe or tube 3i] extends toa liquid supply tank 32, and an air line 34 is provided to connect the top of the expansion chamber 28 and the top of the liquid tank 32.

Communication with a suitable source of air supply is had through a pipe 36 which connects with an adjusting valve 38 through which air introduced from the pipe '36 can pass in regul5 lated quantities through a check valve 40 and a pipe 42 to the lower end of the inner tube l2, thepipe 42 being screwed into the threaded opening 22 in the lower supporting element I6.

The liquid tank 32 is filled with any desired light colorless liquid such as water, white oil or glycerine, and the liquid flows from the tank through the pipe 3|] and expansion chamber 28 into the inner tube I2 until the latter is completely filled. The liquid tight chamber between tubes l0 and 12 has previously been filled with the liquid which it is desired to display so that a relatively thick sheet or film of the liquid to be displayed completely surrounds the body of colorless liquid maintained in the inner tube I2.

For display purposes air is introduced from any suitable source of supply such as a compressor (not shown) through the adjusting valve 36 by means of which the amount of air introduced into the display is readily controlled. The air passes through check valve 4!] and pipe 32 and then rises in the form of bubbles through the liquid contained in the inner tube l2. The bubbles of air then pass into the expansion chamber and from that chamber through the air vent 34.

In this manner the colorless liquid contained in the tube I2 is maintained in a constant state of agitation while the liquid between the tubes I ll and'lZ is maintained in a quiescent state. At the same time the bubbles passing through the colorless liquid can be seen through the sheet or film of colored liquid and give the latter the appearance of being agitated.

In the drawing there is shown a single display device but it will readily be understood that a number of similar devices can readily be arrangedfor the simultaneous display of oils having different colors or other different physical characteristics, and a very attractive display of a arranged. 7

Obviously, many modifications and variations of the invention as herein set forth may be made without departing from the spirit and, scope thereof, and therefore only such limitations should be imposed as'are indicated in the appended claims,

I claim: 7 r r 1. A liquid display device comprising concentrically arranged and similarly'shaped transpar. ent containers, a body of colored liquid adapted' to fill the space between the containers, a body of colorless liquid adapted to fill the inner container, and means for causing turbulence of V the. color:

less liquid to give an appearance of agitation to the colored liquid filling the space between the containers. V 2. A liquid display device comprisingconcentrically arranged and similarly shaped transpare'nt containers, a body of colored liquid adapted to fill the space between the containers, a body of colorless liquid adapted to fill the inner containenand means for bubbling a gaseous/element through the liquid in the inner, container.

3. A'liquid display device comprising concen-' and means for'causing turbulence of the color- 7 7 2,099,155 varied line of lubricating oils can 'therebybe less liquid to give anappearance of agitation to the lubricating oil filling the space between the containers. v

5. A liquid display device comprising concentrically arranged and similarlyshaped transparent containers, upper and lower supporting elements for maintaining said containers in' position and for sealing the ends of the outer container to form a liquid tight chamber, an expansion chamber in communication with the upper end of the inner container, a liquid supply tank in communication with said expansion chamber,

-a body of colorless liquid adapted to fill the inner container and to be supplied from said tank,

a body of colored liquid adapted to fill the liquid tight chamber between the containers, and means for creating a condition of turbulence in the col- "ro'rless liquid to give an appearance of agitation to the colored liquid surrounding it.

6. 'An oil display device comprising concentrically arrangedand similarly shaped transparent containers, upper and lower supporting elements for maintaining said containers in position and for sealing the ends of the outer container to form a liquid tight chamber, :an expansion chamber in communication with the upper end of the inner container, a liquid supply tank in communication with said expansion chamber, a body of colorless oil adapted to fill the inner container and to be supplied 'from saidtank, a' body of colored oil adapted to fill the liquid tight chamber between the containers, means for continuouslybubbling air through the colorless oil, and means for regulating the amount of air intro-- duced in said oil for controlling the degree of turbulence thereof, 7

V r 'CHARLESW; WEBER. 

